i can't, sorry
ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libapt-pkg4.12 1.0.1ubuntu2.1
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Wed Jan 14 14:11:55 2015
DuplicateSignature: package:libapt-pkg4.12:1.0.1ubuntu2.1:cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0' to '/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0.dpkg-new': unexpected end of file or stream
ErrorMessage: cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0' to '/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0.dpkg-new': unexpected end of file or stream
InstallationDate: Installed on 2008-01-01 (2569 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: apt
Title: package libapt-pkg4.12 1.0.1ubuntu2.1 failed to install/upgrade: cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0' to '/usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12.0.dpkg-new': unexpected end of file or stream
UpgradeStatus: No upgrade log present (probably fresh install)
Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your log files attached to this bug report it seems that a package failed to install due to a segmentation fault in the application being used for the package installation process. Unfortunately, this bug report isn't very useful in its current state and a crash report would be much more useful. Could you try recreating this issue by enabling apport to catch the crash report 'sudo service apport start force_start=1' and then trying to install the same package again? This process will create a new bug report so I am marking this one as Invalid. Thanks again for helping out!
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